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LS-123 (5100)

Hindered Amine Light Stabilizer (HALS)


LS-123 (also known as LS-5100) is a liquid non-basic HALS for coatings, printing and packaging, adhesives and sealants. It is designed to fulfil the high performance and durability requirements for all exterior solvent-based automotive and industrial coatings where basic HALS fail. It protects coatings from surface defects such as gloss reduction, cracking and chalking. It improves the retention of mechanical properties.

Chemischer Name:

A mixture of: bis(2,2,6,6-tetramethyl-1-octyloxypiperidin-4-yl)-1,10-decanedioate; 1,8-bis[(2,2,6,6-tetramethyl-4-((2,2,6,6-tetramethyl-1-octyloxypiperidin-4-yl)-decan-1,10-dioyl)piperidin-1-yl)oxy]octane


Aminoether-substituted tetramethyl piperidine derivative






LS-123 has been developed especially for high solids, acid catalyzed automotive and industrial coatings, such as two-coat metallic thermosetting acrylate systems or one-coat opaque thermosetting acrylate and polyester coatings. Its low basicity prevents possible interactions with acidic paint ingredients such as catalysts. Its efficiency provides significant improvement in coatings performance by minimizing paint defects such as cracking and gloss reduction for clear coats as well as chalking for pigmented paints.

LS-123 also enables easy emulsification into waterborne systems. Its performance can be significantly improved when used in combination with a UV absorber. In automotive coatings, combinations of LS-123 with the UV-928 or UV-1130 will significantly improve the weathering resistance and provide superior protection against gloss reduction, cracking, color change, blistering, and de-lamination. The light stabilizers may be added in two-coat applications to both the base and the clear coat. In wood coatings, combinations of LS-123 with UV-1130 have been found highly effective in air drying alkyd-based formulations. The light stabilizer blends can be added to film forming as well as decorative penetrating stains.

Allgemeine Anwendungen

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